1290 wrote:Particulate..... for real??? It's not ebola season is it??
Aussier wrote:Oldbloke, any idea if the disposable masks lose there effectiveness over the years? Fibres break down and lose their integrity etc.?
I've got a dozen disposable P2 masks that have been in the garage for what must be 10 years.
Thoughts?
Oldbloke wrote:Im not sure, but if theyare still sealed in the original packageing, un damaged and look new my guess it they would be ok. Is ther a use by date? Of course ensure a good seal around the edge af the mask. If they leak it reduces the effectvness .
Filter Life Expectancy
It is difficult to determine the exact life expectancy of a filter cartridge. This is because of a number of variable factors. These include the wearers breathing rate, the characteristics and level of contaminant, the length of time a user is exposed to a contaminant. Environmental conditions should also be taken into account such as temperature and humidity which could also affect a wearers breathing rate. Saturated or used cartridges will leak trace amounts of contaminants to the wearer which may be detected via odour, taste, and/or irritation – if a contaminant can be detected by any of these means by the user, then filter cartridges should be changed immediately.